Take-off mechanism for wire cutting machines



Oct. 27, 1931. w. H. ROBBINS ET AL TAKE-OFF MECHANISM-FOR WIRE CUTTINGMACHINES Original Filed March 24 1928 INVENTORQ AL/AM H- ROBBINSPAY/10MB F. BAH/LEE, .12.

ATTORNEYS Fatentecl Oct. 27, 1931 UNITED STATES PATENT OFFICE WILLIAM H.ROBBINS AND RAYMOND IE. BGEHLER, JR., OF SPRINGFIELD, OHIO, AS- SIGNORSTO THE WILLIAMS COMPANY, OF LONDON, OHIO, A CORPORATION OF OHIO TAKE-OFFMECHANISM FOR WIRE CUTTING MACHINES Original application filed March 24,1928, Serial No. 264,413. Divided and. this application filed Januarythrough which the wire passes for the purpose of stretching orstraightening the wire, and also for the purpose of having the wire cutinto determined lengths.

It is also an object of this invention to provide a common means fordriving all of the drums and rollers used in connection with this Wirecutting machine.

These and other advantages w1ll appear from the description taken inconnection wlth the drawings.

Referring to the drawings:

Figure 1 is a detail side elevation of the take-off and cuttingmechanism cutting the wire in sections.

Figure 2 is an end elevation thereof.

Figure 3 is an enlarged section of the cutofl mechanism.

The wire to be operated on 20, passes between the take-oft' frictionrolls 21 and 22, which are geared together by the gears 23 and 24. Thesegears are driven by the belt 25, actuated by the motor 26. These gearsand take-off drums are mounted in spaced frame members 27, which areconnected together by the shafts 28 and 29. In these frame members theupper shaft 29 is slidably mounted in the blocks 30 and spring presseddownwardly by the springs 31 in order to accommodate for theinequalities of the size of the w re, and to provide slipping or clutchmechanism so that the pull on the wire may not exceed a predeterminedamount.

The wire end 20 is passed between a simllar pair of gear-connectedtake-off drums, the rollers 32 and 33 geared together by the gears 34and 35 and supported in uprights 36. The upper roller 32 has a similarspring mechanism 30 and 31 as the upper roller of the other pair oftake-off rollers. The four rollers are geared together with respect tothe intermediate pinion 37 carried on the frame Serial No. 332,911.

member 38. The two spaced frame members 38 are connected by horizontalframe members 39 and 40. The relation between the rollers or drums andthe gears is such that the gears serve as a guide for the wire passingbetween the rollers. By this means the wire cannot leave the rollers atone end. It is a particular advantage of this structure that appli antscan use a relatively Sl10- drum. or roller and maintain the wire thereonbecause of the presence of the gears at one end of the rollers or drums,whereby the strands of wire cannot leave the drums except at one end.

The last-mentioned rolls 32 and 33 are provided with a sliding cuttingknife 41, which travels along the edge of a cutting block 42 andprojects into a slot 43, such block and slot being contained in a lowerroller 33. This provides for chopping off the wire in lengths of givensize.

We desire to comprehend within our invention such modifications as maybe clearly embraced within our claims and the scope of our invention.

This application is a division of our application, Serial N 0. 264,413,filed March 24, 1928.

Having thus fully described our invention, what we claim is new anddesire to secure by Letters Patent, is:

1. In a wire cutting machine, wire takeoff means, superimposed wireengaging takeoff drums, gear means on one side of said drums to gearsaid drums together and acting in part as guides for said means to drivesaid gears, yielding means for accommodating the inequalities of thewire and the relative position of said drums, interconnected cut-offdrums synchronously driven with the takeoff drums, and cut-oif meansassociated therewith for cutting off said wire after it has been takenoff at intervals.

2. In a wire cutting machine, wire take-off means, superimposed wireengaging take-off drums, gear means on one side of said drums to gearsaid drums together, means to drive said gears, yielding means foraccommodating the inequalities of the wire and the relative position ofsaid drums, interconnected cut-off drums synchronously driven with the2. mam

take-E drums, and cut-0E means associated therewith for cutting oflsaidwire after it has been taken ofi at intervals,- said cut-off meansconsisting of a cut-off block and slot in one of said drums'and acut-ofl knife adapted; teen-,1; gage with the slot of said block andproject-- into the slot ofth'e, adjacent drum thereby--- ciittingtheWire as it passes ever said bldck andslot.andbeneathfsaidknife. v 1 g 3.In a take-0fi'mechanisni, plurality of pairs of wire engagingrtake ofidIumS,;-ii1tr meshing gears on the drums of each pair acting in part asguidesion-said Wire, and common means for operating said drums 4. In atake-pfi mechanism, a plurality of pairs of Wire engaging take-01fdrums, inter; meshingggears on "thef druins of each pair acting in partas guides 'ferr sai'cl wire, one I, drum of onepairof drums haying acutting block in it s periphery, and a-siot'te one side of the cuttingblock and the other drum 0i said pair of" drums ha ving a cutting knifein its periphery to engage one side of said v ting b an rmi stl n d-slts. j In testimonyv whereof; yve a ffixjpnn'signwtures. v v

L IAMiH- BOBBINS L A M ND. BQ flL R -i i

